June 2021

Model of the Month

Modeling CMOS Image Sensors

This application note demonstrates how to model a CMOS image sensor with a 1920x1440 pixel array, published by Y. Nitta, et al. in ISSCC 2016.

Tip of the Month

Writing your own UDMs

Here is a list of tutorials and documentations that can help you get started with writing your own user-defined models (UDMs) and generating the functional models of your choice from circuits.

Q&A of the Month

The leakage in the 'switch' primitive

For numerical stability, XMODEL adds GMIN resistances to the nodes with no DC path, which may cause leakage in some of the off-state switches. Here is a tip on how to avoid it.

Upcoming Webinar

Writing OOP-style SystemVerilog testbenches for analog IPs

Missed this webinar on writing OOP-style SystemVerilog testbenches for analog/mixed-signal circuits? Here you can download the presentation slides and watch the video recordings.

Latest Issues

July 2025

Analyzing the Power-Saving Benefits of DBI Encoding for High-Speed Transceivers and More

June 2025

Measuring Open-Loop Transfer Function of DC-DC Converter, Extracting Charge-Pump Converter Models, and More

May 2025

XMODEL at DAC 2025, Modeling an Asynchronous SAR-ADC, and More

April 2025

Modeling NAND Flash Memory, Measuring Comparator's Offset, and More

March 2025

Silicon Photonics Simulation with XMODEL, Measuring I-V Curves, and More